Paper drying apparatus of the festoon type



Aug. 29, 1933. w. P. MOCORKINDALE 1,924,612 u PAPER DRYING APPARATUS OF THE FESTOON TYPE Filed Feb. 9, 1931 3 Sheets-Sheet l INVEN TOR, MZ/z'arrz PMfo'r/hkchk,

A TTORNE Y.

Aug. 29, 1933.

W. P. M CORKINDALE PAPER DRYING APPARATUS OF THE FESTOON TYPE 3 Sheets-Sheet 2 Filed Feb. 9, 1931 Ill"! 65 w. film/W,

ATTORNEY.

g- 1933- w. P. MCCORKINDALE 1,924,612

PAPER DRYING APPARATUS OF THE FESTOON TYPE Filed Feb. 9, 1931 3 Sheets-Sheet 3 I N VEN TOR,

A TTORNE Y.

Patented Aug. 29, 1933.1

IT Dj r A S PAPER DRYING APPARATUS OF THE 1- 'FESTOQNTYPE WilliamPQM'cCorkindale, South Hadley ans,

) Mass.,- assignor to Esleeck- Manufacturing Company, TurnersFalls, Mass, acorporation .of Massachusetts Application a e 9, 193'1, Serial No 514,46 1

" 6' Claims. 1 c1. 34-20) My'invention relates to improvements inlpaper drying apparatus of-the festoon typeiand more particularly for treated papers, that is, paper which has beenusized; glazed, or otherwise treated by passingit through a vat containing thenecessary paper treating ingredients in liquid form, and then looping it into 'festoons on a movable carrier which passes thru a heated room, thereby drying the paper.

as ,it dries, it bakes on., causing wrinklesjandstreaks to appear ,in the finished paper at the points of contact withthe wooden rods. These 6 areas ,of streakedand wrinkledpaper must be of my invention to eliminate these streaked. and

V wrinkled areas, and .therebyj-docaway with the waste of the paper and the labor involved in cut ting out the spoiled sections. r Broad1y, my invention comprisesa festooncar rying member formed as a, cylindrical brushv havingsolidgflan'ges near each end, equal in diameter to the'outSide diameter of the endsot the ,bristles,,and alsohaving extended; flattened 1 end, portions: projecting ,beyondfl each flange, which are designed ,to resthonrthe carrier chains for supporting the brush. By supporting, or .sus-

pending the moist paper, on .the. ends; of the.

bristlesof the brush; ainistvallowed-to freely circulate thru the brush qandnthereby reaches-the entire or'whole surfacefofitheportion of paper resting on the brushataall times, with a result that the drying of the web for paperwill takeplace Fig. 1 a diagrammatic side elevational view of the treating endof a festoon drying apparatus, showing an end of the treating vat, the magazine the carrier shown in Fig. 2, showing the flattened ends of the carrier rod. 1 Fig. '4 is a of the" cylindrical brush.

detail view showing the construction An object of my, invention is to emanate the being 'a section onthe line 99 0f Fig. 8.-

zinc or storage rack 5, open at its upper andlower: cut out and discarded; It is ,the principal object.

-9 pass under the magazine racki5,they, succe sends even," or slightly below theoouter peripheral ,surface'offthe flanges "16, as shown; This is for'y Fig. 5 is'an enlarged sectional ,view through a 1 carrier, showing the moist paper supported there;- i on and. the provisions for ,free' circulation of air;

a Fig. B'isa view of several carriers, as they are v stacked in the magazine rack, showing howthe? interlocking i Fig. '7 is an elevational view of a modifiedform. of tcarrier, showing spaced sections; ofbristles, I thereby providing for agreater circulation of air,: and 1 Figs.;8, 9, 10 and 11 are modifications'Fig.

Referring to the-drawings in detail, in which like numerals refer to like parts throughout: i 70.1

The-.web lof moist paper 1, after passing'thru the sizing or other'vat 2, is withdrawn from this vat over the twodriveri rollers 3 and 4.;- A magaj-, end, is filled with thecarriers andsupporting members 6. The carrier chain 7; which is driven by'the sprocket 8, is equipped with equally and regularly spaced lug links 9. qAs ithese lug links v sively engage the flattened end portio'ns l'iyoiga 8!) carrier member at the bottom of the rack- 5fand] j l carry. it upward along on the chain supporting rails 10. i t The carrier fi'engages-and picks .up a loop -11 of the wet paper 41, the chains 7, on eachside of the carrier; convey the paper carriersffi andthe, loop for paper, 1 upward until the .carriers fi are picked up by thelug links 12 on thevchains, 13, This action causes the paper 1 to hang in loopsor festoons 14,. and invthis form the paper is slowly, conveyed thru the drying room,"until thoroughly; 1 dried. No claim is made to the generallayout of any of the above described apparatus, except the V paper supporting carrier 6, which is myi inve'n-f tion. it r 3 Q.

Eachof the carrier and papersupporting fmembers6 is formed with the shaft 15 having'thejend or bearing flanges or discs 16 andtheoppOsitelyi 1 extending and flattened endlugs 17; which.a 1 'e -**l 60., solid flanges prevent the bristles from meshing-or v l i 8 s i s the purpose that, when the carriers 6' are assembled or stacked in the magazine rack 5, the flanges 16 will prevent the bristles 19 from mesh ing or interlocking with. each-other, as indicated 7 in Fig. 6; The web of moist paper 1 is-supported on the ends of the bristles 19, (see Fig. 5) thereby allowing air to freely circulate thru the bristles and between the paper 1 and shaft 15, as indi-" This construction efthat the, roll shown in Fig. 11, having the bristles .19, may be substituted for the wire roll 29 shown cated by the arrow 21.

.fectually prevents the paper from bakingonto the carrier 6, and causes itto .dry .evenly and smoothly throughout its supporting contact sur-' face.

In "the modifiedforin of carrier and support,

indicated in Fig; 7, sectionsofthe bristles lQ are omitted, leaving the spaced annular openings 22 between the paper andthe shaft 15, there-. by permitting a greater degree of air circulation against the under side or surface of the-Web :of; V

' rier members which are mounted at the entrance of and inthedryingchamber or room-and, one

moist paper 1.

Referringtfo the construction shown in Figsj't,

9, 10 and 11, reference numeral l3, as before, in

dicates a portion of the-horizontally disposed sprocket chain moving in the direction of the arrows-2 3 One'o'f the driving sprocket wheels i's shown at 24. 25 indicates links inthechain hav ing the upwardly extending lugs 12, which lugs are those shown in Fig. 1;

The sprocket chain 13,1and anadjacent chain of the next section aresupported in grooves 26'- and 27 in the oppositelylocated bar members 28 (only one of which'is shown) 29 indicates a roll;

member having the wire cloth 30 ofany suitable mesh and on whichthedepending webs 1- of'paperare supported. This roll is provided with the oppositely projecting shaft portions 31 which are engaged by the lugs 12 of the sprock-f et chain for carrying the festoon Webs of paper along through the drying room; 32 and32 indif 'cate'stripsof any suitable materialwhich arelo cated adjacent the grooved bar 'members 28.:

- These strips are for the purpose of {slightly elesurface or portion of the paper.

.vating' the roll members 29, when they engage" the same, as shown at the right hand end of FigxB. Another purpose of these bars is to cause 3 the paper supporting rolls 29 to'rotate, whereby the contacting surface of the' pap er 'which is hung on these rolls is brought into adifferent tion continues until the roll 29 leaves the strips 32 and 32'; As it leaves the strip '32, it comes,

into contactwi'th the weighted bar or strip 33 located above these rolls. It is now rotated in the opposite'direction as it-is carried forward'by thev chain 13. The paper 1- is now drawn upward in the opposite'di'rection onto and 'over the roll 29 so I ing'p'aper isfrestored; As the roll engages the- I strip 33',"the 'shaftends 31 Will be rotated against the lugs 12. When theroll 29 leaves the strip'33,

that the originaldepending length of the depend it drops down onto the next strip "32, 'asshown,

ithus causing it to again be rotated in -the same] direction as it-did when in contact with the strip 32. 'This operation isalternat'ely repeated during the entire travelioi the paper through the I the 'rods 34. Whencthe wire rolls 29 en'gag'ethe strip 32, the shaft ends 31 are elevated clearoi the chain. but still in e 'maet with 'the-:lugs 'j12. when the rollis'in engagement with theweightbristles wired to said shaft,

This opera-- ed or heavy bars 33, these shaft ends are resting on the sprocket, chain as'shownand frictionally v flow of the drying'airthrough the meshes'of the wire in a'manner'similar to the brush shown in Figs. 2, 3, 4, and 5.

It should be Stated that-it is to be understoo'dv 185 5' in FigplO; It is, obvious that the ends 36 will; 7

' operate in the samemanner as the shaft ends 31 of the roll 29. The bristles 19 willsupport the paper being dried in the same manner as the wire 30.

From this description, it will be seen that I have provided a very efiicient and inexpensive (3011-,

structionfor receiving a web of moist paper by which will. thoroughly prevent the formation of wrinkles, streaks or other marks in the finished product. I Also, a constructionfwhich, not only prevents the formation of wrinkles and streaks at the points where the paper is suspended, buta structure that materiallyhastens the drying process by reason of a free and unobstructed-circulation of the warm air adjacent to and directly on the supporting and carrier' members. Theemployment of brushes, the bristles 'ofwhich p'ro- ,vide the supporting contact for the moist' webpf paper, Ihave found effectually: overcomes and prevents the formation of wrinkles, scratches, or

objectionableir'iarks ofanykind, in the dried and i finished sheet of paper of any-Weight; either light,

or'heavy and of any desired colon:

"What I claim is:

' "l'In a festoon drier constructiomfor the pe pose described, a carrier andsup orting memberformed asa brush, comprising a metal shaftand- 2; In a festo'on drier construction, for the pose described, a carrierand supporting member, comprising a brush;said brush being formed-of a, metal shaft and a plurality of bristles, the-bristles being-wired to saidmetalfshafasaidshaft having flanged endssubstantiallyequal in dimensions to the outside dimensionsof said bristles 3; In a paper drying machine, a; paper sup porting roller comprising. a shaft,gflanges ne'a'r each-end of'said shaft, spiral grooves" formedin' no V said shaft between the:saidiflangesybristles securedin said spiral groovs,with their outer ends flush with the circumferential surfacesf'of said flanges the end portions-on said shaft "outside of f the flangesbeing;formedfwith 'a flat surface for the purpose of preventing said roller froin'revolvingwhen'mjoved on a supporting surface or track; 4, In combination, in'aiipaper drying ap'para tus having a conveyor chain lwith lugs-Which apparatus is located adjacentth'e delivery endof a paper 'making machinaaplur'ality of papersupporting members in a magazine which isf-lo-"- cated adjacent the conveyor and the delivery en'dof the machine, and are successively.removed 'as the lugs .on the conveyor engage the-members for moving: the supp'ortingmembers into contact with the-web of paper; said memb'ers'comprising brushes, radially arranged bristles on the brushes each other.

a festoon manner comprising a cylindrical brush formed with a plurality of radially extending bristles, the bristles of which engage and support the moist paper, whereby a free circulation of air is provided beneath the supportingsurface of the web of paper, said brush having the bristles arranged in groups in spaced relationalong its length. r

6. A conveyor and supporting member for fes- -toon paper dryers comprising a shaft, bristles secured to the same, flanges on the shaft "for permitting a plurality of the members to be on the shaft having a flat surface to permitthe member to bemoved'along on a track surface,

contact with the bristles as described,

' P. MCCQRKINDALEQ when the web of paper is supported on and in 

